<i class="layui-icon">&#xe60c;</i>
<div class="layui-tab">
    <ul class="layui-tab-title">
        <li class="layui-this">标题一</li>
        <li>标题二</li>
        <li>标题三</li>
    </ul>
    <div class="layui-tab-content">
        <div class="layui-tab-item layui-show">内容1</div>
        <div class="layui-tab-item">内容2</div>
        <div class="layui-tab-item">内容3</div>
    </div>
</div>
<button class="layui-btn" lay-submit lay-filter="login" onclick="app.login()">登入</button>